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https://www.readbyqxmd.com/read/29162475/-thyrotropin-reference-ranges-during-pregnancy-in-the-province-of-huelva-spain
#1
A Ortega Carpio, I Vázquez Rico, M A Castaño López, L Duarte González, M Montilla Álvaro, A Ruiz Reina
OBJECTIVE: The correct diagnosis of hypothyroidism during pregnancy requires knowledge of the local trimester-specific thyrotropin (TSH) reference ranges. When these are not available, the guidelines recommend upper limits of 2.5, 3.0, and 3.0μU/ml for the 1(st), 2(nd), and 3(rd) trimesters, respectively. The aim is to establish the reference range for our local population. MATERIAL AND METHODS: A population-based observational study was performed on healthy pregnant women from 11 healthcare centres in the province of Huelva...
November 18, 2017: Semergen
https://www.readbyqxmd.com/read/29160171/recent-pregnancy-is-not-associated-with-high-risk-pathological-features-of-well-differentiated-thyroid-cancer
#2
Angela J Chen, Masha J Livhits, Lin Du, James X Wu, Eric James Kuo, Michael W Yeh, Angela M Leung
BACKGROUND: Thyroid cancer is commonly diagnosed in the first postpartum year, supporting the theory that high levels of estrogen may stimulate progression of hormone-mediated thyroid cancer. The aim of this study was to assess the effect of recent pregnancy on histopathologic disease characteristics of well-differentiated thyroid cancer (WDTC). METHODS: Cases of WDTC (1999-2012) were identified from the California Cancer Registry and linked to data from the Office of Statewide Health Planning and Development...
November 21, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/29159833/maternal-hypothyroidism-in-the-perinatal-period-and-childhood-asthma-in-the-offspring
#3
Xiaoqin Liu, Stine Linding Andersen, Jørn Olsen, Esben Agerbo, Vivi Schlünssen, Shyamali Chandrika Dharmage, Trine Munk-Olsen
BACKGROUND: There is increasing interest in the possible link between maternal hypothyroidism in the perinatal period and childhood asthma risk. We explored this in the present study while accounting for the timing of hypothyroidism diagnosis. Further, we evaluated whether the risk was moderated by thyroid hormone treatment during pregnancy. METHODS: We conducted a population-based cohort study using Danish national registers. All liveborn singletons in Denmark from 1998 to 2007 were identified...
November 21, 2017: Allergy
https://www.readbyqxmd.com/read/29156995/combined-repeated-dose-and-reproductive-developmental-toxicity-screening-test-of-benzene-1-1-oxybis-tetrapropylene-derivs-in-rats
#4
Yasuhiro Tsubokura, Ryuichi Hasegawa, Sunao Aso, Toshio Kobayashi, Takayuki Koga, Satsuki Hoshuyama, Yutaka Oshima, Katsumi Miyata, Yuji Kusune, Takako Muroi, Naoki Hashizume, Yoshiyuki Inoue, Shozo Ajimi, Kotaro Furukawa
We have conducted animal toxicity tests of chemicals for a chemical safety program implemented by the Ministry of Economy, Trade and Industry of Japan. Here we conducted a combined repeated-dose and reproductive/developmental toxicity screening test of benzene, 1,1'-oxybis-, tetrapropylene derivs. (BOTD). BOTD was administered to 9-week-old Crl:CD(SD) male and female rats by gavage at 0, 40, 200, or 1000 mg/kg/day. Males were treated for 42 days including mating period. Females were treated for 42-53 days through the premating, mating, pregnancy, and until Day 4 of lactation periods...
November 20, 2017: Drug and Chemical Toxicology
https://www.readbyqxmd.com/read/29154791/associations-of-early-life-urinary-triclosan-concentrations-with-maternal-neonatal-and-child-thyroid-hormone-levels
#5
Joseph M Braun, Aimin Chen, Andrew Hoofnagle, George D Papandonatos, Medina Jackson-Browne, Russ Hauser, Megan E Romano, Margaret R Karagas, Kimberly Yolton, R Thomas Zoeller, Bruce P Lanphear
BACKGROUND: Triclosan, an antimicrobial agent used in some consumer products, reduces endogenous thyroid hormone concentrations in rodents. Despite ubiquitous triclosan exposure and the importance of thyroid hormones for normal fetal development, few human studies have examined the impact of triclosan exposure on maternal, neonatal, or child thyroid hormones. METHODS: In the HOME Study, a prospective cohort from Cincinnati, OH, we measured urinary triclosan concentrations up to three times in pregnant women between 16weeks and delivery, and up to three times in children between age 1-3years...
November 14, 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/29142837/preoperative-management-in-patients-with-graves-disease
#6
REVIEW
Eliana Piantanida
Graves' disease is the most frequent cause of hyperthyroidism in iodine-sufficient geographical areas and is characterized by the presence in patients' serum of autoantibodies directed against the thyrotropin receptor (TRAb) that cause overproduction and release of thyroid hormones. Clinical presentation results from both hyperthyroidism and underlying autoimmunity. The diagnosis is based on characteristic clinical features and biochemical abnormalities. If serum thyrotropin (TSH) is low, serum free thyroxine (FT4) and free triiodothyronine (FT3) concentrations should be measured to distinguish between subclinical (with normal circulating thyroid hormones) and overt hyperthyroidism (with increased circulating thyroid hormones)...
October 2017: Gland Surgery
https://www.readbyqxmd.com/read/29142304/maternal-exposure-to-iodine-excess-throughout-pregnancy-and-lactation-induces-hypothyroidism-in-adult-male-rat-offspring
#7
Caroline Serrano-Nascimento, Rafael Barrera Salgueiro, Thiago Pantaleão, Vânia Maria Corrêa da Costa, Maria Tereza Nunes
This study aimed to investigate the consequences of maternal exposure to iodine excess (IE; 0.6 mg NaI/L) throughout pregnancy and lactation on the hypothalamus-pituitary-thyroid axis of the male offspring in adulthood. Maternal IE exposure increased hypothalamic Trh mRNA expression and pituitary Tsh expression and secretion in the adult male offspring. Moreover, the IE-exposed offspring rats presented reduced thyroid hormones levels, morphological alterations in the thyroid follicles, increased thyroid oxidative stress and decreased expression of thyroid differentiation markers (Tshr, Nis, Tg, Tpo, Mct8) and thyroid transcription factors (Nkx2...
November 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29131489/evaluation-of-the-serum-zinc-level-in-adult-patients-with-melasma-is-there-a-relationship-with-serum-zinc-deficiency-and-melasma
#8
Majid Rostami Mogaddam, Nastaran Safavi Ardabili, Manouchehr Iranparvar Alamdari, Nasrollah Maleki, Maryam Aghabalaei Danesh
BACKGROUND: Melasma is a common acquired hypermelanosis of sun-exposed skin, particularly on the face, which presents as symmetric, light- to gray-brown-colored macules and patches. There are several studies of serum zinc levels in cutaneous disorders. So far, no studies have been carried out to assess the serum zinc level in patients with melasma. The aim of this study is to determine the serum zinc level in patients with melasma compared to healthy subjects. MATERIALS AND METHODS: A total of 118 patients with melasma and 118 healthy controls were enrolled in this prospective cross-sectional study...
November 12, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/29130077/study-of-the-factors-leading-to-fetal-and-neonatal-dysthyroidism-in-children-of-patients-with-graves-disease
#9
Maïa Banigé, Candice Estellat, Valerie Biran, Luc Desfrere, Valerie Champion, Alexandra Benachi, Yves Ville, Marc Dommergues, Pierre-Henri Jarreau, Mostafa Mokhtari, Claire Boithias, Frederic Brioude, Laurent Mandelbrot, Pierre-François Ceccaldi, Delphine Mitanchez, Michel Polak, Dominique Luton
Context: Neonatal hyperthyroidism was first described in 1912 and in 1964 was shown to be linked to transplacental passage of maternal antibodies. Few multicenter studies have described the perinatal factors leading to fetal and neonatal dysthyroidism. Objective: To show how fetal dysthyroidism (FD) and neonatal dysthyroidism (ND) can be predicted from perinatal variables, in particular, the levels of anti-thyrotropin receptor antibodies (TRAbs) circulating in the mother and child...
June 2017: J Endocr Soc
https://www.readbyqxmd.com/read/29126290/effects-of-levothyroxine-on-pregnant-women-with-subclinical-hypothyroidism-negative-for-thyroid-peroxidase-antibodies
#10
Sima Nazarpour, Fahimeh Ramezani Tehrani, Masoumeh Simbar, Maryam Tohidi, Sonia Minooee, Maryam Rahmati, Fereidoun Azizi
Context: Currently, there is no consensus on universal thyroid screening and Levothyroxine (LT4) treatment of subclinical hypothyroid pregnant women who are negative for thyroid peroxidase antibody (SCH-TPOAb-). Objective: We aimed to evaluate the benefits of LT4 treatment on pregnancy outcomes in SCH-TPOAb- women. Design: This study was conducted within the framework of the Tehran Thyroid and pregnancy study. A single-blind randomized clinical trial was undertaken on SCH-TPOAb- pregnant women...
November 6, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29121867/successful-pregnancy-without-disease-progression-of-radioiodine-refractory-papillary-thyroid-carcinoma-a-case-report
#11
Yuchen Jin, Min Liu, Lingxiao Cheng, Libo Chen
BACKGROUND: Pregnancy is an unquantifiable risk to accelerate tumor growth of papillary thyroid carcinoma (PTC), and whether pregnancy induces an unfavorable prognosis of radioiodine refractory papillary thyroid carcinoma (RR-PTC) remains unknown. CASE PRESENTATION: We investigated the impact of pregnancy on the prognosis of pulmonary metastases in an RR-PTC woman via a long-term clinical follow-up and consecutive computed tomography examinations and serum tests...
November 9, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29121246/the-reference-intervals-of-thyroid-hormones-for-pregnant-women-in-zhejiang-province
#12
Rulin Sun, Jun Xia
Gestation-specific reference intervals for thyroid hormones are used to estimate thyroid function in pregnant women. This study was to establish the reference intervals for pregnant women in Zhejiang province, China. A total of 9038 cases were recruited. The values of thyroid-stimulating hormone (TSH), free thyroxine, free triiodothyronine, total thyroxine, and total triiodothyronine were determined by Beckman Coulter DxI-800 analyzers. Our results indicated that the level of TSH declined in the first trimester and then rose as pregnancy progressed...
November 7, 2017: Laboratory Medicine
https://www.readbyqxmd.com/read/29120650/-thyroid-screening-in-pregnancy-guideline-in-practice
#13
Patrícia Páleníková, Iveta Kalafutová, Zdenka Horníková, Juraj Payer
Thyroid diseases may adversely affect the conception, maintain pregnancy. They increase the risk of complications in pregnancy and may have a negative effect on the fetus. Therefore it is necessary to capture thyroid diseases in the population of pregnant women, in the early stage of pregnancy. In Slovakia, since 2009, the Expert Guideline of the Ministry of Health of the Slovak Republic for the diagnosis and treatment of autoimmune thyroid diseases in women during pregnancy has been in force. In our patient cohort, we monitored 666 pregnant patients, the timeliness of screening, thyroid parameters, the number of pregnancies and their complications, the need for levothyroxine treatment...
2017: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/29109862/comparative-analysis-of-thyroid-function-parameters-in-pregnant-women
#14
Feng Ren, Huan Zhou, Min Chen, Xianqiu Xiao, Xiaoping Rui
The aim of the present study was to investigate the serum levels of free triiodothyronine (FT3), free thyroxine (FT4) and thyroid stimulating hormone (TSH) during pregnancy and comparative analysis of serum markers levels in non-pregnant women and pregnant women. Pregnant women were divided into four groups according to their gestational age: 8-14, 15-20, 21-36 and ≥37 weeks. Non-pregnant women were divided into three groups according to their age: 20-40, 41-55 and 56-85 years, and women of reproductive age (20-40 years) as control, which match their age and body mass index with pregnant women...
November 2017: Biomedical Reports
https://www.readbyqxmd.com/read/29105177/reference-intervals-of-trimester-specific-thyroid-stimulating-hormone-and-free-thyroxine-in-chinese-women-established-by-experimental-and-statistical-methods
#15
Lican Han, Wei Zheng, Yanhong Zhai, Xin Xie, Jingnan Zhang, Shaozu Zhang, Zhen Zhao, Zheng Cao
BACKGROUND: As a result of physiological and metabolic changes during pregnancy, thyroid hormones can be affected significantly throughout entire three trimesters. According to the guidelines published by American Thyroid Association in 2017, it is strongly recommended to establish population-based trimester-specific and assay method-specific reference intervals (RIs) using local population. METHODS: A total of 1209 pregnant women without personal or family history of thyroid disease were recruited from July 2015 to April 2017 at Beijing Obstetrics and Gynecology Hospital...
November 4, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/29102040/preconceptional-antithyroid-peroxidase-antibodies-but-not-thyroid-stimulating-hormone-are-associated-with-decreased-live-birth-rates-in-infertile-women
#16
Aimee Seungdamrong, Anne Z Steiner, Clarisa R Gracia, Richard S Legro, Michael P Diamond, Christos Coutifaris, William D Schlaff, Peter Casson, Gregory M Christman, Randal D Robinson, Hao Huang, Ruben Alvero, Karl R Hansen, Susan Jin, Esther Eisenberg, Heping Zhang, Nanette Santoro
OBJECTIVE: To study whether preconceptual thyroid-stimulating hormone (TSH) and antithyroid peroxidase (TPO) antibodies are associated with poor reproductive outcomes in infertile women. DESIGN: Secondary analysis of data from two multicenter, randomized, controlled trials conducted by the Reproductive Medicine Network of the Eunice Kennedy Shriver National Institute of Child Health and Human Development. Multivariable logistic regression analyses were performed to assess the association between preconceptual TSH levels and anti-TPO antibodies...
October 25, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/29097518/evaluation-of-thyroid-function-during-pregnancy-have-we-taken-a-wrong-turn
#17
Ann M Gronowski
No abstract text is available yet for this article.
November 2, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/29084139/the-impact-of-iodine-status-on-the-recall-rate-of-the-screening-program-for-congenital-hypothyroidism-findings-from-two-national-studies-in-iran
#18
Ladan Mehran, Shahin Yarahmadi, Davood Khalili, Pantea Nazeri, Hossein Delshad, Zahra Abdollahi, Nasrin Azhang, Fereidoun Azizi
Back ground: Iodine deficiency is one of the important factors in increasing the recall rate in congenital hypothyroidism (CH) screening programs. The present study assessed whether the iodine status of the general population may predict the recall rate or vice versa. METHODS: In the current national study, among 1,382,229 live births delivered between March 2010 and March 2011, 1,288,237 neonates were screened for detecting CH by TSH (thyroid stimulating hormone) measurement via heel prick sampling...
October 30, 2017: Nutrients
https://www.readbyqxmd.com/read/29072060/risk-factors-for-hydatidiform-mole-is-husband%C3%A2-s-job-a-major-risk-factor
#19
Hourieh Shamshiri Milani, Morteza Abdollahi, Sara Torbati, Taha Asbaghi, Eznollah Azargashb
Background: The hydatidiform mole (HM) is a precancerous placenta considered as a gestational trophoblastic disease (GTD). It may convert to more invasive forms of gestational trophoblastic neoplasia (GTN), endangering women’s health by more severe complications. Most GTN cases originate from HM, which is associated with uterine bleeding, preeclampsia and thyroid problems. Its etiology has not been adequately explored, but some risk factors have been reported. The aim of the present study was to assess any relationships between molar pregnancy and factors including mothers’ and husbands’ occupations...
October 26, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/29070512/debate-identifying-and-treating-subclinical-thyroid-dysfunction-in-pregnancy-emerging-controversies
#20
Ines I Velasco, Peter Nicholas Taylor
Thyroid hormones are essential for an adequate growth and development of the foetus. In addition to the classical association between maternal hypothyroidism and neurological impairment in the progeny, other adverse reproductive events have been associated with maternal thyroid dysfunction including infertility, miscarriage and preterm delivery. Although all scientific societies endorse the treatment of overt hypothyroidism; the management and/or treatment of subclinical hypothyroidism, hypothyroxinemia or antithyroid antibody-positive women should be considered with caution...
October 25, 2017: European Journal of Endocrinology
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